US6617464B2 - Production of 5-methylbutyrolactone from levulinic acid - Google Patents
Production of 5-methylbutyrolactone from levulinic acid Download PDFInfo
- Publication number
- US6617464B2 US6617464B2 US10/099,354 US9935402A US6617464B2 US 6617464 B2 US6617464 B2 US 6617464B2 US 9935402 A US9935402 A US 9935402A US 6617464 B2 US6617464 B2 US 6617464B2
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- United States
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- group
- metal catalyst
- mpa
- Prior art date
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- Expired - Fee Related
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- VKIUVLAVGVCBDZ-UHFFFAOYSA-N CC(=O)CCC(=O)O.CC1CCC(=O)O1 Chemical compound CC(=O)CCC(=O)O.CC1CCC(=O)O1 VKIUVLAVGVCBDZ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/26—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D307/30—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D307/32—Oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D315/00—Heterocyclic compounds containing rings having one oxygen atom as the only ring hetero atom according to more than one of groups C07D303/00 - C07D313/00
Definitions
- This invention relates to a process for producing 5-methylbutyrolactone from levulinic acid utilizing an optionally supported metal catalyst.
- Levulinic acid is a well-known product of hexose acid hydrolysis, and is inexpensively obtained from cellulose feedstocks. Consequently, it is an attractive starting material in producing many useful 5-carbon compounds such as methyltetrahydrofuran and derivatives.
- 5-methylbutyrolactone also known as 5-valerolactone or ⁇ -valerolactone, can be produced from levulinic acid as shown below.
- U.S. Pat. No. 5,883,266 discloses the use of a bifunctional catalyst having a first function of hydrogenating and a second function of ring opening to prepare a variety of products from levulinic acid including 5-valerolactone.
- U.S. Pat. No. 2,786,852 disclosed production of 5-valerolactone from levulinic acid using a reduced copper oxide catalyst.
- U.S. Pat. No. 4,420,622 discloses preparation of 5-alkyl-butyrolactones from levulinic esters using metal catalysts.
- the present invention is a process of preparing 5-methylbutyrolactone comprising heating levulinic acid in the presence of hydrogen with a catalytic amount of a catalyst having a hydrogenation and a ring-closing function, wherein the catalyst is a metal.
- the metal catalyst is optionally supported on a catalyst support.
- the catalyst support is selected from the group consisting of carbon, SiO 2 , and Al 2 O 3 .
- the more preferred catalyst support member is carbon.
- the most preferred catalyst support member is oxidatively stable carbon.
- the metal catalyst of the invention can be selected from the group consisting of Group VII (Groups 8-10) of the Periodic Table of Elements, preferably selected from the group consisting of iridium, palladium, platinum, rhenium, rhodium and ruthenium and combinations thereof. More preferably the metal catalyst is ruthenium; most preferably supported on oxidatively stable carbon.
- the process of the instant invention is preferably performed at a temperature from about 100° C. to about 200° C., more preferably at a temperature of about 140-160° C.
- the process is also preferably performed at a pressure of about 0.5 to about 10.0 MPa, more preferably at a pressure of about 4.0 to about 6.0 MPa.
- the process is also preferably carried out in a liquid phase.
- the catalyst of the instant invention may optionally be promoted with at least one promoter, preferably where the promoter is a metal.
- the promoter is selected from the group consisting of Group VII (Groups 8-10) and Group IB (Group 11) elements of the Periodic Table of Elements, more preferably gold, silver and copper.
- the invention is directed to a process for the preparation of 5-methylbutyrolactone, also known as 5-valerolactone or ⁇ -valerolactone, from levulinic acid in the presence of a metal catalyst.
- 5-methylbutyrolactone also known as 5-valerolactone or ⁇ -valerolactone
- the catalyst of the invention can include one or more metals selected from Group VIII (Group 8-Group 10) elements from the Periodic Table of Elements, more preferably, the group consisting of iridium, palladium, platinum, rhenium, rhodium and ruthenium.
- the metal catalyst can optionally be supported on a catalyst support.
- the metal can be deposited on the support using any method known in the art.
- the catalyst has about 1% to about 10% by weight of metal present on the support; more preferably about 5%.
- the catalyst can include one or more promoters.
- the promoter is also a metal, where the promoter is present in less than about 50 weight percent compared to the metal catalyst. More preferably the promoter is a Group VIII or a Group IB (Group 11) metal of the Periodic Table of Elements.
- Each catalyst individually has both a hydrogenation and a ring-closing function; that is, the reaction proceeds in one step and produces little or none of the pentyl alcohols such as pentanediol.
- the catalyst support can be any solid, inert substance including, but not limited to, metal oxides such as silica, alumina, and titania, and carbons. Preferred are carbons with a surface area greater than 200 m 2 /gm.
- the catalyst support can be in the form of powder, granules, pellets, or the like.
- “Oxidatively stable carbon” is hereby defined as carbon that exhibits substantial weight stability when heated in air. Such carbons are described further in International Publication WO 97/30932. More particularly, when the carbons are heated in air at 125° C. for 30 minutes, followed by heating at 200° C. for 30 minutes, followed by heating at 300° C. for 30 minutes, followed by heating at 350° C. for 45 minutes, followed by heating at 400° C. for 45 minutes, followed by heating at 450° C. for 45 minutes and finally followed by heating at 500° C. for 30 minutes, the carbons employed for the process of this invention lose less than 20% of their weight. This sequence of time and temperature conditions for evaluating the effect of heating carbon samples in air is defined herein as the “WVC Temperature Test”.
- the WVC Temperature Test may be run using thermal gravimetric analysis (TGA). Carbons which when subjected to the WVC Temperature Test lose about 20% of their weight, or less, are considered to be advantageously oxidatively stable. Carbon from any of the following sources are useful for the process of this invention; wood, peat, coal, coconut shells, bones, lignite, petroleum-based residues and sugar. Commercially available carbons which may be used in this invention include those sold under the following trademarks: Bameby & SutcliffeTM, DarcoTM, NucharTM, Columbia JXNTM, Columbia LCKTM, Calgon PCBTM, Calgon BPLTM, WestvacoTM, NoritTM and Barnaby Cheny NBTM.
- TGA thermal gravimetric analysis
- the process is best performed at from about 50° C. to about 250° C., preferably 100° C. to about 200° C., and more preferably at about 140° C. to about 160° C.
- the process is performed at a pressure of about 5 to about 100 atmospheres (0.5 MPa to 10 MPa).
- the process is performed at a pressure of about 40 to about 60 atmospheres (4.0 to 6.0 MPa).
- the process is performed in an atmosphere of pure hydrogen gas, or a mixture of hydrogen with inert gases.
- the process is preferably carried out in a liquid phase.
- the choice of solvent is not critical provided the solvent is not detrimental to catalyst, reactant and product.
- a preferred solvent is dioxane or 5-valerolactone.
- Preferred reactor designs are trickle bed and slurry.
- Catalyst supports used are listed below.
- the oxidatively stable carbon catalyst supports were tested for weight stability via thermogravimetric analysis according to the WVC Temperature Test.
- the catalysts were prepared by impregnating the catalyst support by incipient wetness with a metal salt.
- the precursors used were NiCl 2 .6H 2 O (Alfa Aesar, Ward Hill, Mass.), Re 2 O 7 (Alfa), PdCl 2 (Alfa), RuCl 3 .xH 2 O (Aldrich, Milwaukee, Wis.), H 2 PtCl 6 (Johnson Matthey, Ward Hill, Mass.), 5% Rh using RhCl 3 .xH 2 O (Alfa), Re 2 O 7 (Alfa) and IrCl 3 .3H 2 O (Johnson Matthey).
- the samples were dried and reduced at 400° C. in H 2 for 2 hours.
- LA Con refers to LA Conversion, which is measured by subtracting the remaining amount of levulinic acid from the initial amount of levulinic acid (LA initially-LA remaining).
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
- Furan Compounds (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/099,354 US6617464B2 (en) | 2001-03-16 | 2002-03-15 | Production of 5-methylbutyrolactone from levulinic acid |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US27658101P | 2001-03-16 | 2001-03-16 | |
US10/099,354 US6617464B2 (en) | 2001-03-16 | 2002-03-15 | Production of 5-methylbutyrolactone from levulinic acid |
Publications (2)
Publication Number | Publication Date |
---|---|
US20030055270A1 US20030055270A1 (en) | 2003-03-20 |
US6617464B2 true US6617464B2 (en) | 2003-09-09 |
Family
ID=23057217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/099,354 Expired - Fee Related US6617464B2 (en) | 2001-03-16 | 2002-03-15 | Production of 5-methylbutyrolactone from levulinic acid |
Country Status (8)
Country | Link |
---|---|
US (1) | US6617464B2 (fr) |
EP (1) | EP1368333A1 (fr) |
JP (1) | JP2005500987A (fr) |
KR (1) | KR20030082984A (fr) |
CN (1) | CN1498215A (fr) |
BR (1) | BR0208248A (fr) |
CA (1) | CA2437740A1 (fr) |
WO (1) | WO2002074760A1 (fr) |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040254384A1 (en) * | 2003-06-16 | 2004-12-16 | Manzer Leo Ernest | Production of 5-methyl-dihydro-furan-2-one from levulinic acid in supercritical media |
US20060100450A1 (en) * | 2004-11-10 | 2006-05-11 | Manzer Leo E | Process for the production of y-methyl-a-methylene-y-butyrolactone from reaction of levulinic acid and hydrogen followed by reaction of crude y-valerolactone and formaldehyde, both reactions being carried out in the supercritical or near-critical fluid phase |
US20060100447A1 (en) * | 2004-11-10 | 2006-05-11 | Manzer Leo E | Process for the production of y-methyl-a-methylene-y-butyrolactone from reaction of levulinic acid and hydrogen with recycle of unreacted levulinic acid followed by reaction of crude y-valerolactone and formaldehyde, both reactions being carried out in the supercritical or near-critical fluid phase |
US20060100448A1 (en) * | 2004-11-10 | 2006-05-11 | Manzer Leo E | Process for the production of Y-methyl-A-methylene-Y-butyrolactone from reaction of levulinic acid and hydrogen in the liquid phase followed by reaction of crude-Y-valerolactone and formaldehyde |
US20060100449A1 (en) * | 2004-11-10 | 2006-05-11 | Manzer Leo E | Integrated two-step process for the production of gamma-methyl-alpha-methylene-gamma-butyrolactone from levulinic acid and hydrogen |
US20090069609A1 (en) * | 2007-09-07 | 2009-03-12 | Range Fuels, Inc. | Cobalt-molybdenum sulfide catalyst materials and methods for ethanol production from syngas |
US20090069452A1 (en) * | 2007-09-07 | 2009-03-12 | Range Fuels, Inc | Methods and apparatus for producing ethanol from syngas with high carbon efficiency |
US20090156392A1 (en) * | 2007-12-14 | 2009-06-18 | Range Fuels, Inc. | Catalyst compositions and methods for alcohol production from synthesis gas |
US20100210741A1 (en) * | 2008-09-04 | 2010-08-19 | Range Fuels, Inc. | Cobalt-molybdenum sulfide catalyst materials and methods for stable alcohol production from syngas |
US20100280287A1 (en) * | 2008-09-04 | 2010-11-04 | Range Fuels, Inc. | Cobalt-molybdenum sulfide catalyst materials and methods for stable alcohol production from syngas |
US20100331581A1 (en) * | 2009-06-30 | 2010-12-30 | Range Fuels, Inc. | Methods of making improved cobalt-molybdenum-sulfide catalyst compositions for higher alcohol synthesis |
US20110046399A1 (en) * | 2009-08-07 | 2011-02-24 | Rene Johan Haan | Process for preparing a hydroxyacid or hydroxyester |
US20110112326A1 (en) * | 2009-08-07 | 2011-05-12 | Jean-Paul Lange | Process for hydrogenation |
US20120197029A1 (en) * | 2009-09-11 | 2012-08-02 | Korea Research Institute Of Chemical Technology | Method for producing cyclicised compounds from organic acids having from 4 to 6 carbon atoms |
WO2014150384A1 (fr) | 2013-03-15 | 2014-09-25 | Segetis, Inc. | Procédé de fabrication d'acide octane-dioïque, précurseurs et dérivés |
WO2016056030A1 (fr) | 2014-10-08 | 2016-04-14 | Council Of Scientific & Industrial Research | Procédé de préparation de gamma-valérolactone par hydrogénation catalytique de l'acide lévulinique à l'aide de catalyseurs à base de ru |
WO2017061865A1 (fr) | 2015-10-06 | 2017-04-13 | Avantium Knowledge Centre B.V. | Procédé de préparation de gamma-valérolactone |
EP3184517A1 (fr) | 2015-12-23 | 2017-06-28 | Neste Oyj | Procédé sélectif pour la conversion d' acide levulinic à gammavalerolactone |
US9878967B2 (en) | 2015-12-23 | 2018-01-30 | Iowa State University Research Foundation, Inc. | Method of converting levulinic acid or a derivative thereof to hydrocarbons and hydrogen, and methods of the production of hydrocarbons and hydrogen |
US9884834B2 (en) | 2015-12-23 | 2018-02-06 | Neste Oyj | Combined levulinic acid and furfural production from biomass |
CN108014798A (zh) * | 2016-11-04 | 2018-05-11 | 中国石油化工股份有限公司 | 加氢制备2-甲基四氢呋喃的催化剂及其使用方法 |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1828095B1 (fr) | 2004-12-23 | 2011-10-05 | Shell Internationale Research Maatschappij B.V. | Procede d'hydrogenation d'une lactone ou d'un acide carboxylique ou d'un ester comprenant un groupe gamma-carbonyle |
CA2687203A1 (fr) * | 2007-05-22 | 2008-11-27 | Shell Internationale Research Maatschappij B.V. | Procede permettant de convertir de l'acide levulinique en acide pentanoique |
EP2462100A1 (fr) | 2009-08-07 | 2012-06-13 | Shell Internationale Research Maatschappij B.V. | Procédé pour l'hydrogénation |
WO2011015385A1 (fr) | 2009-08-07 | 2011-02-10 | Shell Internationale Research Maatschappij B.V. | Procédé pour la préparation d'un ester |
CN101805316A (zh) * | 2010-04-22 | 2010-08-18 | 复旦大学 | 一种用负载型铱催化剂制备γ-戊内酯的方法 |
EA025474B1 (ru) * | 2011-06-21 | 2016-12-30 | ДСМ АйПи АССЕТС Б.В. | Способ получения валеролактона из левулиновой кислоты |
PL2573064T3 (pl) * | 2011-09-23 | 2014-04-30 | Dsm Ip Assets Bv | Sposób wytwarzania estrów kwasu alkenowego z laktonów |
CN102558108B (zh) * | 2011-12-22 | 2014-07-16 | 南开大学 | 用铱-钳形配体络合物催化剂制备γ-戊内酯的方法 |
CN102617519B (zh) * | 2012-03-05 | 2014-08-13 | 中国石油大学(华东) | 由乙酰丙酸加氢制备γ-戊内酯的方法 |
KR101333055B1 (ko) | 2013-04-26 | 2013-11-27 | 박유성 | 발전기 및 그 제조방법 |
FR3008970B1 (fr) * | 2013-07-25 | 2015-08-21 | IFP Energies Nouvelles | Procede de production d'alcools par hydrogenation catalytique d'acide levulinique en une etape |
CN104496945B (zh) * | 2015-01-08 | 2016-06-22 | 山西大学 | 一种γ-戊内酯的制备方法 |
CN107406399A (zh) | 2015-02-18 | 2017-11-28 | 帝斯曼知识产权资产管理有限公司 | 使用在水中用氢气预处理过的钌(RU)催化剂使乙酰丙酸(LA)氢化成γ‑戊内酯(GVL) |
EP3381911A4 (fr) * | 2015-11-16 | 2019-06-26 | UBE Industries, Ltd. | Procédé de production de -valérolactone |
CN109395723B (zh) * | 2018-12-10 | 2021-08-31 | 郑州师范学院 | 一种乙酰丙酸加氢制γ-戊内酯Ru-Al催化体系及其制备方法和应用 |
CN110548505A (zh) * | 2019-08-20 | 2019-12-10 | 青岛科技大学 | 核壳型催化剂及其合成方法、以及其催化乙酰丙酸制备γ-戊内酯的方法 |
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US2786852A (en) * | 1953-08-19 | 1957-03-26 | Quaker Oats Co | Process of preparing gammavalerolactone |
US4420622A (en) * | 1981-07-02 | 1983-12-13 | Stamicarbon B.V. | Process for the preparation of a 5-alkyl-butyrolactone |
US5883266A (en) * | 1998-01-16 | 1999-03-16 | Battelle Memorial Institute | Hydrogenated 5-carbon compound and method of making |
Family Cites Families (2)
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US2368366A (en) * | 1942-08-21 | 1945-01-30 | Monsanto Chemicals | Process for the production of lactones |
GB896949A (en) * | 1957-12-14 | 1962-05-23 | Basf Ag | Improvements in the production of proto-anemonin and its homologues |
-
2002
- 2002-03-14 KR KR10-2003-7011976A patent/KR20030082984A/ko not_active Application Discontinuation
- 2002-03-14 WO PCT/US2002/007878 patent/WO2002074760A1/fr not_active Application Discontinuation
- 2002-03-14 CA CA002437740A patent/CA2437740A1/fr not_active Abandoned
- 2002-03-14 BR BR0208248-9A patent/BR0208248A/pt not_active IP Right Cessation
- 2002-03-14 JP JP2002573769A patent/JP2005500987A/ja not_active Withdrawn
- 2002-03-14 CN CNA028067231A patent/CN1498215A/zh active Pending
- 2002-03-14 EP EP02725171A patent/EP1368333A1/fr not_active Withdrawn
- 2002-03-15 US US10/099,354 patent/US6617464B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2786852A (en) * | 1953-08-19 | 1957-03-26 | Quaker Oats Co | Process of preparing gammavalerolactone |
US4420622A (en) * | 1981-07-02 | 1983-12-13 | Stamicarbon B.V. | Process for the preparation of a 5-alkyl-butyrolactone |
US5883266A (en) * | 1998-01-16 | 1999-03-16 | Battelle Memorial Institute | Hydrogenated 5-carbon compound and method of making |
Cited By (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6946563B2 (en) * | 2003-06-16 | 2005-09-20 | E. I. Du Pont De Nemours And Company | Production of 5-methyl-dihydro-furan-2-one from levulinic acid in supercritical media |
US20040254384A1 (en) * | 2003-06-16 | 2004-12-16 | Manzer Leo Ernest | Production of 5-methyl-dihydro-furan-2-one from levulinic acid in supercritical media |
US20060100450A1 (en) * | 2004-11-10 | 2006-05-11 | Manzer Leo E | Process for the production of y-methyl-a-methylene-y-butyrolactone from reaction of levulinic acid and hydrogen followed by reaction of crude y-valerolactone and formaldehyde, both reactions being carried out in the supercritical or near-critical fluid phase |
US20060100447A1 (en) * | 2004-11-10 | 2006-05-11 | Manzer Leo E | Process for the production of y-methyl-a-methylene-y-butyrolactone from reaction of levulinic acid and hydrogen with recycle of unreacted levulinic acid followed by reaction of crude y-valerolactone and formaldehyde, both reactions being carried out in the supercritical or near-critical fluid phase |
US20060100448A1 (en) * | 2004-11-10 | 2006-05-11 | Manzer Leo E | Process for the production of Y-methyl-A-methylene-Y-butyrolactone from reaction of levulinic acid and hydrogen in the liquid phase followed by reaction of crude-Y-valerolactone and formaldehyde |
US20060100449A1 (en) * | 2004-11-10 | 2006-05-11 | Manzer Leo E | Integrated two-step process for the production of gamma-methyl-alpha-methylene-gamma-butyrolactone from levulinic acid and hydrogen |
US7923405B2 (en) | 2007-09-07 | 2011-04-12 | Range Fuels, Inc. | Cobalt-molybdenum sulfide catalyst materials and methods for ethanol production from syngas |
US20090069609A1 (en) * | 2007-09-07 | 2009-03-12 | Range Fuels, Inc. | Cobalt-molybdenum sulfide catalyst materials and methods for ethanol production from syngas |
US20090069452A1 (en) * | 2007-09-07 | 2009-03-12 | Range Fuels, Inc | Methods and apparatus for producing ethanol from syngas with high carbon efficiency |
US20090156392A1 (en) * | 2007-12-14 | 2009-06-18 | Range Fuels, Inc. | Catalyst compositions and methods for alcohol production from synthesis gas |
US20090156697A1 (en) * | 2007-12-14 | 2009-06-18 | Range Fuels, Inc. | Catalyst compositions and methods for alcohol production from synthesis gas |
US20090156393A1 (en) * | 2007-12-14 | 2009-06-18 | Range Fuels, Inc. | Catalyst compositions and methods for alcohol production from synthesis gas |
US9146220B2 (en) | 2008-09-04 | 2015-09-29 | Albemarle Corporation | Cobalt-molybdenum sulfide catalyst materials and methods for stable alcohol production from syngas |
US20100210741A1 (en) * | 2008-09-04 | 2010-08-19 | Range Fuels, Inc. | Cobalt-molybdenum sulfide catalyst materials and methods for stable alcohol production from syngas |
US20100280287A1 (en) * | 2008-09-04 | 2010-11-04 | Range Fuels, Inc. | Cobalt-molybdenum sulfide catalyst materials and methods for stable alcohol production from syngas |
US8354357B2 (en) | 2008-09-04 | 2013-01-15 | Albemarle Corporation | Cobalt-molybdenum sulfide catalyst materials and methods for stable alcohol production from syngas |
US8586801B2 (en) | 2008-09-04 | 2013-11-19 | Albemarle Corporation | Cobalt-molybdenum sulfide catalyst materials and methods for stable alcohol production from syngas |
US8383691B2 (en) | 2009-06-30 | 2013-02-26 | Albemarle Corporation | Methods of making improved cobalt-molybdenum-sulfide catalyst compositions for higher alcohol synthesis |
US20100331581A1 (en) * | 2009-06-30 | 2010-12-30 | Range Fuels, Inc. | Methods of making improved cobalt-molybdenum-sulfide catalyst compositions for higher alcohol synthesis |
US20110046399A1 (en) * | 2009-08-07 | 2011-02-24 | Rene Johan Haan | Process for preparing a hydroxyacid or hydroxyester |
US20110112326A1 (en) * | 2009-08-07 | 2011-05-12 | Jean-Paul Lange | Process for hydrogenation |
US8580978B2 (en) * | 2009-08-07 | 2013-11-12 | Shell Oil Company | Process for preparing a hydroxyacid or hydroxyester |
US20120197029A1 (en) * | 2009-09-11 | 2012-08-02 | Korea Research Institute Of Chemical Technology | Method for producing cyclicised compounds from organic acids having from 4 to 6 carbon atoms |
US8598372B2 (en) * | 2009-09-11 | 2013-12-03 | Korea Research Institute Of Chemical Technology | Method for producing cyclicised compounds from organic acids having from 4 to 6 carbon atoms |
WO2014150384A1 (fr) | 2013-03-15 | 2014-09-25 | Segetis, Inc. | Procédé de fabrication d'acide octane-dioïque, précurseurs et dérivés |
WO2016056030A1 (fr) | 2014-10-08 | 2016-04-14 | Council Of Scientific & Industrial Research | Procédé de préparation de gamma-valérolactone par hydrogénation catalytique de l'acide lévulinique à l'aide de catalyseurs à base de ru |
WO2017061865A1 (fr) | 2015-10-06 | 2017-04-13 | Avantium Knowledge Centre B.V. | Procédé de préparation de gamma-valérolactone |
US10377727B2 (en) | 2015-10-06 | 2019-08-13 | Synvina C.V. | Process for the preparation of gamma-valerolactone |
EP3184517A1 (fr) | 2015-12-23 | 2017-06-28 | Neste Oyj | Procédé sélectif pour la conversion d' acide levulinic à gammavalerolactone |
US9878967B2 (en) | 2015-12-23 | 2018-01-30 | Iowa State University Research Foundation, Inc. | Method of converting levulinic acid or a derivative thereof to hydrocarbons and hydrogen, and methods of the production of hydrocarbons and hydrogen |
US9884834B2 (en) | 2015-12-23 | 2018-02-06 | Neste Oyj | Combined levulinic acid and furfural production from biomass |
US9914714B2 (en) | 2015-12-23 | 2018-03-13 | Neste Oy J | Selective process for conversion of levulinic acid to gammavalerolactone |
CN108014798A (zh) * | 2016-11-04 | 2018-05-11 | 中国石油化工股份有限公司 | 加氢制备2-甲基四氢呋喃的催化剂及其使用方法 |
CN108014798B (zh) * | 2016-11-04 | 2020-10-30 | 中国石油化工股份有限公司 | 加氢制备2-甲基四氢呋喃的催化剂及其使用方法 |
Also Published As
Publication number | Publication date |
---|---|
US20030055270A1 (en) | 2003-03-20 |
CA2437740A1 (fr) | 2002-09-26 |
WO2002074760A1 (fr) | 2002-09-26 |
CN1498215A (zh) | 2004-05-19 |
KR20030082984A (ko) | 2003-10-23 |
EP1368333A1 (fr) | 2003-12-10 |
BR0208248A (pt) | 2004-03-02 |
JP2005500987A (ja) | 2005-01-13 |
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